/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.carbondata.core.datastorage.store;

import org.apache.carbondata.core.datastorage.store.dataholder.CarbonWriteDataHolder;

public interface NodeMeasureDataStore {
  /**
   * This method will be used to get the writable key array.
   * writable measure data array will hold below information:
   * <size of measure data array><measure data array>
   * total length will be 4 bytes for size + measure data array length
   *
   * @return writable array (compressed or normal)
   */
  byte[][] getWritableMeasureDataArray(CarbonWriteDataHolder[] dataHolderArray);

  MeasureDataWrapper getBackData(int[] cols, FileHolder fileHolder);

  MeasureDataWrapper getBackData(int cols, FileHolder fileHolder);

  short getLength();

}